Change Extruder Steps/MM?

Flux users,

I’d like to start experimenting on some extruder designs. These will introduce a new gear ratio to the Flux’s extruder. I’ve submitted a ticket a bit ago to see if this was possible, but I’d like to go about seeing where to go to update these in the firmware. The ticket has been dormant for quite some time, and I’m not expecting an answer to be honest.

Once I’ve gotten past that, I’d like to see if it’s possible to utilize a 0.2 nozzle on the device, vice its default. This would require the slicing software within Flux to account for the change in diameter.

Any assistance in this area would be appreciated. Thanks for any insight you all may have.